WO2009098952A1 - Hybrid vehicle - Google Patents

Abstract

A case (14) for containing electric components including at least a battery module is mounted at a position which is directly behind a fuel tank (42), located below a floor panel (41) of a hybrid vehicle, and below the floor of a cargo compartment sandwiched between left and right rear side frames (12), and a canister (48) is mounted on either the left side or the right side of the case (14). Because the canister (48) is mounted at a position which is inward of the outer edges in the left-right direction of the rear side frames (12) and is forward from the rear end of the case (14), the cargo compartment at the rear of the vehicle body has a sufficient volume, the case (14) and the canister (48) are protected by the rear side frames (12) against impact in a side collision of the vehicle, and the fuel tank (42) and the canister (48) are protected by the case (14) against impact in a rear collision of the vehicle.

Description

Hybrid vehicle

The present invention is arranged immediately after the fuel tank disposed below the floor panel, and under the floor of the cargo compartment sandwiched between the left and right rear side frames, a case for storing electrical components including at least a battery module is disposed, The present invention relates to a hybrid vehicle in which a canister is arranged on one side of the case.

Patent Document 1 below discloses that a battery for driving a motor of a hybrid vehicle is disposed on the floor of a luggage compartment at the rear of the vehicle body.

Also, in a hybrid vehicle in which a battery is placed in the luggage compartment behind the rear seat and a spare tire is placed behind it, the spare tire that moves forward is prevented so that the spare tire moves forward and damages the battery when it receives a rear impact. A device provided with a guide member for guiding obliquely upward is known from Patent Document 2 below.
Japanese Unexamined Patent Publication No. 2005-205953 Japanese Patent Application Laid-Open No. 2004-262412

By the way, when a fuel tank is disposed below the rear seat of the hybrid vehicle and a spare tire and a battery are disposed under the floor of the cargo compartment in order to secure the volume of the cargo compartment at the rear of the vehicle body, Since the tank and the canister, which is an accessory of the fuel tank, may be damaged, it is necessary to protect these parts from the impact of a collision. It is also desirable to protect the fuel tank in front from damage without providing a special guide member for guiding the spare tire even if the spare tire moves forward due to the impact of the collision when the vehicle is rearwardly impacted.

The present invention has been made in view of the above-described circumstances, and an object thereof is to protect a case for storing electrical components, a fuel tank, and a canister from the impact of a collision while ensuring the capacity of a cargo compartment at the rear of the vehicle body.

In order to achieve the above object, according to the present invention, at least a battery module is included immediately behind a fuel tank disposed below a floor panel and below the floor of a cargo compartment sandwiched between left and right rear side frames. A hybrid vehicle in which a case for storing electrical components is disposed, and a canister is disposed on one side of the case. The canister is located on the inner side of the rear side frame outer end and the rear end of the case. A hybrid vehicle having a first characteristic of being arranged ahead of the vehicle is proposed.

According to the invention, in addition to the first feature, an air filter for filtering air introduced into the canister is provided behind the canister, and the air filter is outside a projection range to the rear of the canister. A hybrid vehicle having a second characteristic of being arranged is proposed.

According to the present invention, in addition to the second feature, there is proposed a hybrid vehicle having a third feature that a rear end of the air filter is arranged behind a rear end of the case. .

According to the present invention, in addition to any one of the first to third features, the case is provided with a silencer on the other side in the left-right direction, and the rear end of the silencer is located behind the rear end of the case. A hybrid vehicle having a fourth feature is proposed.

According to the invention, in addition to any one of the first to third features, a silencer is provided at the rear of the case, and the silencer is disposed within a projection range to the rear of the case. A hybrid vehicle having a fifth characteristic is proposed.

According to the invention, in addition to any one of the first to fifth features, the electrical component includes: a battery module disposed at a lower portion of the case; an inverter disposed at an upper portion of the case; And a hybrid vehicle characterized in that an intermediate duct for guiding cooling air from the battery module to the inverter is arranged at the rear of the case.

Further, according to the present invention, in addition to the sixth configuration, a hybrid vehicle is proposed in which the rear end of the canister is disposed ahead of the front end of the intermediate duct.

According to the present invention, in addition to any one of the first to seventh features, the case is suspended and supported by the left and right rear side frames via a suspension frame. A hybrid vehicle is proposed in which the canister is arranged in front of the rear end of the suspension frame.

According to the invention, in addition to any one of the first to eighth features, a reinforcing frame having left and right ends connected to the left and right rear side frames is provided between the fuel tank and the case. A hybrid vehicle having a ninth feature is proposed.

According to the present invention, in addition to any one of the first to ninth features, a hybrid vehicle having a tenth feature that an article storage container is provided behind the case is proposed.

According to the present invention, in addition to any one of the first to tenth features, a spare tire is disposed above the case, and the lower surface of the spare tire is located at the same level as or higher than the upper surface of the fuel tank. A hybrid vehicle is proposed in which the rear end of the spare tire is disposed rearward of the rear end of the case.

According to the present invention, in addition to the eleventh feature, a hybrid vehicle according to the twelfth feature is proposed in which a bracket that is separated by impact is provided on the upper surface of the case, and the spare tire is supported on the bracket. Is done.

According to the present invention, in addition to the eleventh or twelfth feature, a rear seat disposed with the floor panel sandwiched above the fuel tank, an intake duct for introducing cooling air into the case, An exhaust duct for discharging cooling air from the case, and a connection portion of the intake duct and the exhaust duct to the case is disposed between a front portion of the spare tire and a seat cushion of the rear seat. A thirteenth feature hybrid vehicle is proposed.

According to the invention, in addition to the thirteenth feature, the cross connecting the left and right rear side frames between a connection portion of the intake duct and the exhaust duct to the case and a seat cushion of the rear seat. A hybrid vehicle having a fourteenth feature that members are arranged is proposed.

Further, according to the present invention, a case for storing an electrical component including at least a battery module is provided immediately after the fuel tank disposed below the floor panel and below the floor of the cargo compartment sandwiched between the left and right rear side frames. A hybrid vehicle in which a canister is arranged on one side of the case on the left and right sides of the case, the canister being arranged on the inner side of the rear side frame in the left-right direction and on the front side of the rear end of the case; An air filter for filtering air introduced into the canister is disposed outside a projection range to the rear of the canister, and the electrical component is disposed at a battery module disposed at a lower portion of the case and an upper portion of the case. An inverter that guides cooling air from the battery module to the inverter at the rear of the case During the duct is arranged, the rear end of the canister, the hybrid vehicle according to the fifteenth aspect of to be placed further forward than the front end of the intermediate duct is proposed.

Further, according to the present invention, a case for storing an electrical component including at least a battery module is provided immediately after the fuel tank disposed below the floor panel and below the floor of the cargo compartment sandwiched between the left and right rear side frames. A hybrid vehicle in which a canister is arranged on one side of the case on the left and right sides of the case, the canister being arranged on the inner side of the rear side frame in the left-right direction and on the front side of the rear end of the case; A spare tire is disposed above the case, the lower surface of the spare tire is disposed at the same or higher position as the upper surface of the fuel tank, and the rear end of the spare tire is disposed behind the rear end of the case. A rear seat disposed above the fuel tank with the floor panel interposed therebetween, and an intake duct for introducing cooling air into the case And an exhaust duct for discharging cooling air from the case, and a connection portion of the intake duct and the exhaust duct to the case is disposed between a front portion of the spare tire and a seat cushion of the rear seat. In addition, a hybrid vehicle according to a sixteenth feature is proposed in which a cross member for connecting the left and right rear side frames is disposed between the connection portion and a seat cushion of the rear seat.

It should be noted that the waterproof case 14 of the embodiment corresponds to the case of the present invention.

According to the first aspect of the present invention, at least a battery module is included immediately after the fuel tank disposed below the floor panel of the hybrid vehicle and below the floor of the cargo space sandwiched between the left and right rear side frames. When placing the case to store the electrical components and placing the canister on the left and right side of the case, the canister is placed on the inner side of the rear side frame in the left and right direction and on the front side of the rear end of the case. The case and the canister can be protected by the rear side frame when the vehicle is collided, and the canister and the fuel tank can be protected by the case when the vehicle is collided rearward.

According to the second aspect of the present invention, since the air filter for filtering the air introduced into the canister is disposed outside the projection range to the rear of the canister, the air filter moves forward due to the rear impact of the vehicle. Even so, the air filter can prevent the canister from being damaged.

Further, according to the third feature of the present invention, since the rear end of the air filter is arranged behind the rear end of the case, the impact of the collision can be absorbed by the air filter and the damage to the case can be reduced.

Further, according to the fourth feature of the present invention, the rear end of the silencer provided on the other side in the left-right direction of the case is disposed behind the rear end of the case. Can be reduced.

According to the fifth aspect of the present invention, since the silencer provided at the rear of the case is disposed within the projection range to the rear of the case, the impact when the vehicle is rear-ended is absorbed by the collapse of the silencer. Can protect the case.

According to a sixth aspect of the present invention, the electrical component includes a battery module disposed at the lower portion of the case and an inverter disposed at the upper portion of the case, and cooling air is supplied from the battery module to the inverter at the rear portion of the case. Since the intermediate duct for guiding is arranged, the impact when the vehicle is rearwardly impacted can be absorbed by the collapse of the intermediate duct to protect the electrical component.

According to the seventh aspect of the present invention, since the rear end of the canister is arranged forward of the front end of the intermediate duct, the impact when the vehicle is rearwardly impacted is absorbed by the collapse of the intermediate duct to protect the canister. can do.

According to the eighth aspect of the present invention, the case is supported by hanging on the left and right rear side frames via the hanging frame, and the electrical parts and the canister are arranged in front of the rear end of the hanging frame. The electrical components and the canister can be protected by the hanging frame when the rear end is struck.

According to the ninth aspect of the present invention, since the reinforcing frame having the left and right ends connected to the left and right rear side frames is provided between the fuel tank and the case, the fuel tank is mounted on the reinforcing frame when the vehicle is rear-projected. Can be protected.

Further, according to the tenth feature of the present invention, since the article storage container is provided behind the case, the case can be protected by using the article storage container as a crushable zone when the vehicle is bumped rearward.

Further, according to the eleventh feature of the present invention, the spare tire is arranged above the case, the lower surface thereof is the same as or higher than the upper surface of the fuel tank, and the rear end thereof is rearward of the rear end of the case. It is possible to protect the case with a spare tire when the vehicle is bumped rearward and to prevent the spare tire moving forward due to the impact of the collision from damaging the fuel tank.

According to the twelfth feature of the present invention, a bracket for separating by impact is provided on the upper surface of the case, and the spare tire is supported on the bracket. Therefore, when the impact is applied to the spare tire by the rear impact of the vehicle, Can be separated from the case to prevent damage to the case.

According to a thirteenth aspect of the present invention, the rear seat arranged with the floor panel sandwiched above the fuel tank, the intake duct for introducing the cooling air into the case, and the exhaust duct for discharging the cooling air from the case Since the connection part to the case of the intake duct and the exhaust duct is arranged between the front part of the spare tire and the seat cushion of the rear seat, the intake duct is moved when the spare tire moves forward due to the rear impact of the vehicle. In addition, the impact of the collision can be absorbed by the exhaust duct and the seat cushion can be prevented from being damaged.

According to the fourteenth feature of the present invention, the cross member for connecting the left and right rear side frames is disposed between the connection portion of the intake duct and the exhaust duct to the case and the seat cushion of the rear seat. Can be prevented by the cross member from being transmitted to the seat cushion.

According to the fifteenth feature of the present invention, at least a battery module is provided immediately after the fuel tank disposed below the floor panel of the hybrid vehicle and under the floor of the cargo compartment sandwiched between the left and right rear side frames. When placing the case that houses the electrical components, and placing the canister on the left and right sides of the case, the canister is placed inside the rear side outer edge of the rear side frame and ahead of the rear end of the case. The case and the canister can be protected by the rear side frame when the vehicle is collided, and the canister and the fuel tank can be protected by the case when the vehicle is collided rearward. In addition, the air filter that filters the air introduced into the canister is placed outside the projection range to the rear of the canister, so that the air filter can damage the canister even if the vehicle is rear-projected and the air filter moves forward. Can be prevented. Further, the vehicle includes a battery module in which electrical components are arranged at the lower part of the case and an inverter arranged at the upper part of the case, and an intermediate duct for guiding cooling air from the battery module to the inverter is arranged at the rear of the case. In addition to absorbing the impact of the rear-end collision by crushing the intermediate duct and protecting the electrical components, the rear end of the canister is placed in front of the front end of the intermediate duct, so the vehicle is rear-end impacted. The canister can be protected by absorbing the impact caused by the collapse of the intermediate duct.

According to the sixteenth feature of the present invention, at least a battery module is provided immediately after the fuel tank disposed below the floor panel of the hybrid vehicle and below the floor of the cargo space sandwiched between the left and right rear side frames. When placing the case that houses the electrical components, and placing the canister on the left and right sides of the case, the canister is placed inside the rear side outer edge of the rear side frame and ahead of the rear end of the case. The case and the canister can be protected by the rear side frame when the vehicle is collided, and the canister and the fuel tank can be protected by the case when the vehicle is collided rearward. In addition, a spare tire is arranged above the case, its lower surface is the same as or higher than the upper surface of the fuel tank, and its rear end is located behind the rear end of the case. While protecting a case, it can prevent that the spare tire which advances by the impact of a collision damages a fuel tank. In addition, a rear seat disposed above the fuel tank with a floor panel interposed therebetween, an intake duct for introducing cooling air into the case, and an exhaust duct for discharging cooling air from the case are provided, and the front portion of the spare tire and the rear seat are provided. Since the connection part of the intake duct and exhaust duct to the case is placed between the seat cushion and the spare tire moves forward due to the rear impact of the vehicle, the impact of the collision is absorbed by the intake duct and exhaust duct. Since the cross member that connects the left and right rear side frames is arranged between the connection part of the intake and exhaust ducts to the case and the seat cushion of the rear seat, the seat cushion can be prevented from being damaged. The cross member can prevent the impact from being transmitted to the seat cushion.

FIG. 1 is an overall perspective view of the vehicle power supply device according to the first embodiment. (First embodiment) FIG. 2 is a view in the direction of the arrow 2 in FIG. (First embodiment) FIG. 3 is a view in the direction of arrows 3 in FIG. (First embodiment) 4 is a cross-sectional view taken along line 4-4 of FIG. (First embodiment) 5 is a cross-sectional view taken along line 5-5 of FIG. (First embodiment) 6 is a cross-sectional view taken along line 6-6 of FIG. (First embodiment) 7 is a view in the direction of arrow 7 in FIG. (First embodiment) FIG. 8 is a diagram corresponding to FIG. 2 according to the second embodiment. (Second Embodiment) FIG. 9 is a view taken in the direction of arrow 9 in FIG. (Second Embodiment) FIG. 10 is a diagram corresponding to FIG. 2 according to the third embodiment. (Third embodiment)

Explanation of symbols

12 Rear side frame 14 Waterproof case
16 Suspension frame 18 Duct member 19 Intake duct 20 Exhaust duct 24 Battery module 33 Inverter 36 Intermediate duct 41 Floor panel 42 Fuel tank 43 Seat cushion 45 Rear seat 46 Reinforcement frame 47 Cross member 48 Canister 49 Air filter 50 Silencer 50 'Silencer 51 Spare Tire 53 Bracket 58 Cargo compartment 60 Goods storage container

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First embodiment

1 to 7 show a first embodiment of the present invention.

As shown in FIG. 1, a power supply device for operating a motor / generator of a hybrid vehicle is stored using a tire pan 11 storing a spare tire 51 below a trunk room at the rear of the vehicle body. The left and right side edges of the container-like tire pan 11 recessed downward are connected to the left and right rear side frames 12 and 12. The power supply device includes a container-shaped waterproof case 14 whose upper surface is open and a flat cover member 15 that closes the upper surface opening, and is sandwiched between the waterproof case 14 and the cover member 15 in the vehicle width direction. Both ends of the pair of front and rear hanging frames 16, 16 extending in the vehicle width direction are fixed to the upper surfaces of the left and right rear side frames 12, 12 with bolts 17. Therefore, the power supply apparatus is suspended and supported by the left and right rear side frames 12 and 12 via the pair of front and rear suspension frames 16 and 16.

The front edge of the lid member 15 ends at the position of the hanging frame 16 on the front side, and the duct member 18 is accommodated in the waterproof case 14 in front of it. On the upper surface of the duct member 18, the downstream end of the intake duct 19 that sucks the air in the passenger compartment as cooling air into the waterproof case 14 and the upstream of the exhaust duct 20 that discharges the cooled cooling air from the waterproof case 14. The air intake duct 19 extends from the left front portion of the waterproof case 14 to the upper left front side of the vehicle body, and the exhaust duct 20 extends rearward from the right front portion of the waterproof case 14 to the right side surface of the vehicle body. An electric cooling fan 21 is provided at the downstream end of the exhaust duct 20, and cooling air is sucked into the intake duct 19 by the negative pressure generated by the cooling fan 21. The cooling air discharged from the intake duct 19 is discharged between the interior material of the trunk room and the rear fender, partly returned to the passenger compartment and partly discharged outside the vehicle.

As shown in FIGS. 5 and 6, a lower battery case 22 and an upper battery case 23 constituting the first cooling air passage 39 are arranged at the bottom of the waterproof case 14 so as to form a space therebetween. . A rod-shaped battery module 24... In which a plurality of battery cells are connected in series in the vehicle width direction is arranged in seven rows in the front-rear direction and two steps in the vertical direction, and a pair of left and right U-shaped lower battery support frames 25, 25. And a pair of left and right I-shaped upper battery support frames 26, 26 coupled to the upper ends of the upper battery support frame 26 and 26.

A pair of left and right brackets 27, 27 provided on the upper surface of each upper battery support frame 26 and a hanging frame 16 are long bolts 29, 29 having collars 28, 28 fitted on the outer periphery, and lower ends thereof. It is connected with nuts 30 and 30 which are screwed together. Accordingly, a total of 14 battery modules 24 are suspended and supported by the front and rear suspension frames 16 by the four bolts 29.

A lower electrical component case 31 and an upper electrical component case 32 are fixed on the upper surface of the upper battery case 23, and an inverter 33 and a DC-DC converter 34, which are electrical components, are juxtaposed side by side in the vehicle width direction. Thereby, the inverter 33 and the DC-DC converter 34 can be arranged in a compact manner.

A second cooling air passage 40 is formed between the upper surface of the upper battery case 23 and the lower surface of the lower electrical component case 31 so as to guide the cooling air that has cooled the battery modules 24 to the second cooling air passage 40. An intermediate duct 36 that is curved in a U shape is provided at the rear of the waterproof case 14. The inlet opening 36 a of the intermediate duct 36 communicates with the downstream end of the first cooling air passage 39, and the outlet opening 36 b of the intermediate duct 36 communicates with the upstream end of the second cooling air passage 40. In this way, the intermediate duct 36 is formed in a U-shape that smoothly curves from the downstream end of the first cooling air passage 39 to the upstream end of the second cooling air passage 40, so that the cooling air is passed from the first cooling air passage 39. The second cooling air passage 40 can be smoothly guided.

Heat sinks 37 and 38 extending downward from the inverter 33 and the DC-DC converter 34 respectively face the second cooling air passage 40. Thus, since the heat sinks 37 and 38 extending downward from the lower surfaces of the inverter 33 and the DC-DC converter 34 are made to face the second cooling air passage 40, the inverter 33 and the DC are not increased without increasing the flow resistance of the cooling air. -The DC converter 34 can be cooled efficiently.

As shown in FIGS. 1 to 4, a floor panel 41 is connected in front of the tire pan 11, a fuel tank 42 is disposed on the lower surface thereof, and a rear seat 45 having a seat cushion 43 and a seat back 44 on the upper surface thereof. Is placed. An intake port 19 a at the front end of the intake duct 19 opens into the vehicle compartment at the left end of the seat back 44. The upper surface of the waterproof case 14, that is, the height of the lid member 15 and the height of the upper end of the fuel tank 42 are substantially equal, and the left and right rear side frames 12 are disposed between the front surface of the waterproof case 14 and the rear surface of the fuel tank 42. , 12 are disposed in the vehicle width direction. A cross member 47 connecting the left and right rear side frames 12 and 12 is provided between the portion where the intake duct 19 and the exhaust duct 20 are connected to the duct member 18 and the rear end of the seat cushion 43 of the rear seat 45. Arranged in the direction.

A canister 48 that temporarily charges the evaporated fuel generated by the fuel tank 42 is supported on the left side of the waterproof case 14 and is sucked into the canister 48 to purge the evaporated fuel charged in the canister 48 into the intake passage of the engine. An air filter 49 that filters outside air is supported on the lower surface of the left rear side frame 12 behind the canister 48. When viewed in the longitudinal direction of the vehicle body, the left end of the canister 48 is disposed on the inner side in the vehicle width direction than the left end of the left rear side frame 12, and the air filter 49 is located on the outer side in the vehicle width direction of the projection range of the canister 48 to the rear of the vehicle body (See FIG. 4). Further, as viewed in the vehicle width direction, the rear end of the canister 48 is disposed in front of the rear end of the waterproof case 14 (see FIG. 2). Further, a silencer 50 for reducing exhaust noise is supported on the right side of the waterproof case 14, and the rear end of the silencer 50 is arranged behind the rear end of the waterproof case 14 (see FIG. 3).

As shown in FIGS. 2 to 6, a spare tire 51 is supported on the upper surface of the lid member 15 of the waterproof case. Behind the rear suspension frame 16, a spare tire support frame 52 is bridged between the left and right rear side frames 12, 12, and the rear end of the bracket 53 is welded W 1 to the front upper surface of the lid member 15. Is welded W2 to the spare tire support frame 52. A mounting portion 55 having a weld nut 54 is provided in the front-rear direction intermediate portion of the bracket 53 that is lifted from the upper surface of the lid member 15. Fixed. At this time, the left and right two portions of the rear portion of the spare tire 51 are supported by the two receiving members 57 and 57 provided on the spare tire support frame 52. A detachable bottom plate 59 that divides the lower surface of the luggage compartment 58 is disposed above the spare tire 51, and an article storage container 60 that stores small items is disposed on the lower surface of the rear portion thereof. In other words, the spare tire 51 and the waterproof case 14 are not located in the luggage compartment 58 but below the bottom plate 59 of the luggage compartment 58.

With the spare tire 51 stored, the rear end protrudes rearward from the rear end of the waterproof case 14. The front end of the spare tire 51 faces the back of the cross member 47 across a portion where the intake duct 19 and the exhaust duct 20 are connected to the duct member 18.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

When the motor / generator of the hybrid vehicle is driven, the electrical components including the battery modules 24, the inverter 33, and the DC-DC converter 34 generate heat. When the cooling fan 21 is driven, air in the vehicle compartment is sucked into the duct member 18 as cooling air from the intake duct 19 due to the negative pressure generated upstream thereof. The cooling air flows into the first cooling air passage 39 of the waterproof case 14 from the duct member 18, cools the battery modules 24 while flowing therethrough from the front to the rear, and then makes an U-turn upward by the intermediate duct 36 to make the first turn. 2 The cooling air passage 40 flows from the rear to the front, and contacts with the heat sinks 37 and 38 to cool the inverter 33 and the DC-DC converter 34. The cooling air that has been cooled in this way flows into the exhaust duct 20 from the duct member 18, passes through the cooling fan 21, and is separated into the vehicle interior and the vehicle interior and discharged.

Now, when the vehicle receives a side collision or a rear collision, the canister 48, the battery module 24, the inverter 33 and the DC-DC converter 34 are protected as follows. That is, as can be seen from FIG. 4, since the canister 48 is disposed on the inner side in the vehicle width direction with respect to the left rear side frame 12 in the rear view of the vehicle body, the impact of the side collision is received by the rear side frame and the canister 48 is damaged. Can be prevented. Of course, the left and right rear side frames 12 and 12 function to protect the battery modules 24..., The inverter 33 and the DC-DC converter 34 inside the waterproof case 14 disposed between them. Further, the rear end of the canister 48 (see the line L1 in FIGS. 2 and 3) is disposed in front of the rear end of the waterproof case 14 (see the line L2 in FIGS. 2 and 3) in a side view of the vehicle body. The impact of the rear impact can be absorbed by the rear portion of the waterproof case 14 to prevent the canister 48 from being damaged.

In particular, since the intermediate duct 36 (see FIG. 5) inside the waterproof case 14 is disposed behind the rear end of the canister 48, the intermediate duct 36 is crushed and effectively absorbs collision energy. The canister 48, the battery module 24..., The inverter 33, and the DC-DC converter 34 in front of the canister 48 can be protected. Further, of the front and rear suspension frames 16 and 16 that support the suspension of the waterproof case 14, a canister 48, a battery module 24, an inverter 33, and a DC-DC converter 34 are arranged in front of the rear suspension frame 16. Therefore, their protection is more certain.

In addition, since the rear end of the air filter 49 disposed on the left side of the waterproof case 14 and the silencer 50 disposed on the right side protrudes rearward from the rear end of the waterproof case 14, the impact of the rear impact is detected by the air filter 49 and Absorbing by crushing the silencer 50 to reduce damage to the waterproof case 14, the article storage container 60 disposed behind the waterproof case 24 also functions as a crushable zone to absorb the impact of the rear impact. To do. Moreover, since the air filter 49 is disposed outside the rear projection range of the canister 48 (see FIG. 4), even if the air filter 49 moves forward due to a rear impact, the air filter 49 does not collide with the canister 48 and damage the canister 48. Can be prevented.

In addition, since the spare tire 51 is supported on the upper surface of the waterproof case 14, the spare tire 51 may move forward when receiving a rear collision, but the height of the lower surface of the spare tire 51 is the height of the fuel tank 42. Since the height is equal to or higher than the height of the upper surface, the fuel tank 42 is not damaged by the spare tire 51 moving forward. In addition, since the reinforcing frame 46 is disposed in the vehicle width direction at the rear portion of the fuel tank 42, the impact of the rear impact can be received by the reinforcing frame 46, and the fuel tank 42 can be more reliably protected.

Further, since the connection portion of the intake duct 19 and the exhaust duct 20 to the duct member 18 at the front end of the waterproof case 14 is disposed between the seat cushion 43 of the rear seat 45 and the front end of the spare tire 51, the impact of the rear collision. Thus, even if the spare tire 51 moves forward, the connecting portion of the intake duct 19 and the exhaust duct 20 is crushed and the impact of the spare tire 51 moving forward can be absorbed and the rear seat 45 can be protected. At this time, since the cross member 47 extending in the vehicle width direction is disposed behind the seat cushion 43 of the rear seat 45, the rear seat 45 can be more reliably protected by the cross member 47.

Further, since the spare tire 51 is supported on the upper surface of the lid member 15 of the waterproof case 14 by a bracket 53 welded W1 and W2 so as to be broken, the bracket 53 is welded when a rear impact is applied to the spare tire 51. By easily separating from the lid member 15 at W1 and W2, damage to the waterproof case 14 connected to the lid member 15 can be prevented.

Second embodiment

Next, a second embodiment of the present invention will be described based on FIG. 8 and FIG.

In the first embodiment, the silencer 50 is arranged on the right side of the waterproof case 14, but in the second embodiment, the silencer 50 'is located behind the waterproof case 14, more specifically, the waterproof case. 14 is located within the rearward projection range. Accordingly, when the vehicle receives a rear collision, the silencer 50 'can be more reliably crushed, and the energy of the collision can be effectively absorbed to protect the waterproof case 14.

Third embodiment

Next, a third embodiment of the present invention will be described with reference to FIG.

In the first and second embodiments, the spare tire 51 is disposed above the waterproof case 14, but in the third embodiment, the storage space for the spare tire 51 is used as the article storage unit 61. Yes.

That is, in the third embodiment, the space of the cargo chamber 58 can be expanded by moving the bottom plate 59 that defines the lower surface of the cargo chamber 58 to the position of the bottom plate 62. Further, the article storage container 60 can be accessed by folding the bottom plate 59.

Other configurations of the third embodiment are the same as those of the first and second embodiments, and the same operational effects can be achieved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the gist thereof.

For example, although the hybrid vehicle is exemplified in the embodiment, the present invention can also be applied to an electric vehicle.

Claims (16)

At least a battery module (24) is placed immediately below the fuel tank (42) disposed below the floor panel (41) and under the floor of the cargo compartment (58) sandwiched between the left and right rear side frames (12). A hybrid vehicle in which a case (14) for storing electrical components including the same is disposed, and a canister (48) is disposed on one side of the case (14);
The hybrid vehicle is characterized in that the canister (48) is disposed inside an outer end in the left-right direction of the rear side frame (12) and in front of a rear end of the case (14). An air filter (49) for filtering air introduced into the canister (48) is provided at the rear of the canister (48), and the air filter (49) is disposed outside a projection range to the rear of the canister (48). The hybrid vehicle according to claim 1, wherein: The hybrid vehicle according to claim 2, wherein a rear end of the air filter (49) is arranged behind a rear end of the case (14). The silencer (50) is provided on the other side in the left-right direction of the case (14), and the rear end of the silencer (50) is disposed behind the rear end of the case (14). The hybrid vehicle according to any one of claims 1 to 3. The silencer (50 ') is provided at the rear of the case (14), and the silencer (50') is disposed within a rear projection range of the case (14). Item 4. The hybrid vehicle according to any one of item 3. The electrical component includes a battery module (24) disposed at a lower portion of the case (14) and an inverter (33) disposed at an upper portion of the case (14). The hybrid vehicle according to any one of claims 1 to 5, wherein an intermediate duct (36) for guiding cooling air from the battery module (24) to the inverter (33) is disposed. . The hybrid vehicle according to claim 6, characterized in that a rear end of the canister (48) is arranged in front of a front end of the intermediate duct (36). The case (14) is suspended and supported by the left and right rear side frames (12) via a suspension frame (16), and the electrical component and the canister (48) are arranged behind the suspension frame (16). The hybrid vehicle according to any one of claims 1 to 7, wherein the hybrid vehicle is disposed in front of an end. The reinforcing frame (46) having left and right ends connected to the left and right rear side frames (12) is provided between the fuel tank (42) and the case (14). The hybrid vehicle according to any one of the above. The hybrid vehicle according to any one of claims 1 to 9, wherein an article storage container (60) is provided behind the case (14). A spare tire (51) is disposed above the case (14), and the lower surface of the spare tire (51) is disposed at the same or higher position as the upper surface of the fuel tank (42), and the spare tire (51 The hybrid vehicle according to any one of claims 1 to 10, wherein a rear end of the vehicle is disposed rearward of a rear end of the case (14). The hybrid vehicle according to claim 11, wherein a bracket (53) that is separated by an impact is provided on an upper surface of the case (14), and the spare tire (51) is supported on the bracket (53). A rear seat (45) disposed above the fuel tank (42) with the floor panel (41) interposed therebetween, an intake duct (19) for introducing cooling air into the case (14), and the case (14) And an exhaust duct (20) for exhausting cooling air from the spare tire (51) and a seat cushion (43) of the rear seat (45) between the intake duct (19) and the exhaust. 13. A hybrid vehicle according to claim 11 or claim 12, characterized in that a connection of the duct (20) to the case (14) is arranged. The left and right rear side frames (12) are connected between a connection portion of the intake duct (19) and the exhaust duct (20) to the case (14) and a seat cushion (43) of the rear seat (45). The hybrid vehicle according to claim 13, characterized in that a cross member (47) is arranged. At least a battery module (24) is placed immediately below the fuel tank (42) disposed below the floor panel (41) and under the floor of the cargo compartment (58) sandwiched between the left and right rear side frames (12). A hybrid vehicle in which a case (14) for storing electrical components including the same is disposed, and a canister (48) is disposed on one side of the case (14);
The canister (48) is disposed inside the left and right outer ends of the rear side frame (12) and in front of the rear end of the case (14), and allows air introduced into the canister (48). The air filter (49) for filtering is disposed outside the projection range to the rear of the canister (48),
The electrical component includes a battery module (24) disposed at a lower portion of the case (14) and an inverter (33) disposed at an upper portion of the case (14). An intermediate duct (36) for guiding cooling air from the battery module (24) to the inverter (33) is disposed, and a rear end of the canister (48) is disposed forward of a front end of the intermediate duct (36). A hybrid vehicle characterized by being made. At least a battery module (24) is placed immediately below the fuel tank (42) disposed below the floor panel (41) and under the floor of the cargo compartment (58) sandwiched between the left and right rear side frames (12). A hybrid vehicle in which a case (14) for storing electrical components including the same is disposed, and a canister (48) is disposed on one side of the case (14);
The canister (48) is disposed on the inner side of the rear end in the left-right direction of the rear side frame (12) and forward of the rear end of the case (14),
A spare tire (51) is disposed above the case (14), and the lower surface of the spare tire (51) is disposed at the same or higher position as the upper surface of the fuel tank (42), and the spare tire (51 ) Is arranged behind the rear end of the case (14),
A rear seat (45) disposed above the fuel tank (42) with the floor panel (41) interposed therebetween, an intake duct (19) for introducing cooling air into the case (14), and the case (14) And an exhaust duct (20) for discharging cooling air from the exhaust duct (20) between the front portion of the spare tire (51) and a seat cushion (43) of the rear seat (45). A connecting portion of the duct (20) to the case (14) is disposed, and the left and right rear side frames (12) are connected between the connecting portion and a seat cushion (43) of the rear seat (45). A hybrid vehicle in which a cross member (47) is disposed.

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